Brand: HP
Category: Computer
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for EliteBook 640 14 inch G11 Notebook PC
Uploaded: Nov. 21, 2025, 7:50 p.m.
Manual Publish Date: 2024-04-01
Warranty Information
This manual provides maintenance and service information for the HP EliteBook 640 G11 Notebook PC.
- Components: Identifies and describes various components of the HP EliteBook 640 G11, including ports, display, keyboard, touchpad, lights, buttons, and security features.
- Maintenance: Provides information on removal and replacement procedures for customer self-repair parts, and procedures for authorized service providers.
- Backup and Recovery: Details methods for backing up data, creating recovery media, and restoring the system.
- System Setup: Covers Computer Setup (BIOS), TPM, and HP Sure Start, including navigation, factory settings, and BIOS updates.
- Diagnostics: Explains how to use HP PC Hardware Diagnostics (Windows and UEFI) for troubleshooting.
- Specifications: Lists computer, display, and solid-state drive specifications.
- Power and Recycling: Includes power cord requirements and recycling information.
Troubleshooting and error codes
| Description | Volatility description | Storage user data | How to erase |
|---|---|---|---|
| Primary storage device, holds the OS, applications, and application settings | Non-volatile, 8-256 GB of eMMC or NVMe SSD storage, removable | Yes1 | Follow instructions below under "Erase the Primary Storage Device" |
| System memory (RAM), holds transient data during system operation | Volatile, SODIMM socket. Removable (4 GB/8GB/16 GB) | Yes | Unplug unit from power |
| Permanent system BIOS settings | Non-volatile; 16 KB; stored | No2 | Follow instructions below under "Clearing BIOS Settings" |
| System boot ROM (BIOS) | Non-volatile memory, 128 Mbit (16 MB) socketed, removable | No | Download the latest BIOS for your model from the HP website and follow the instructions to flash the BIOS that are on the website |
| RTC (CMOS) RAM | Volatile memory, 256 bytes located in AMD embedded System on Chip (SoC) | No | Desktop computers with a CMOS button: Unplug unit from main power, remove top cover and press the Clear CMOS button. Notebook and desktop computers without a CMOS button: 1. Press and hold power button for 12 seconds. 2. Press Windows key + V, and then press power button. |
| Keyboard/mouse (ROM) | Non-volatile, 2 KB embedded in the super I/O controller (SIO2) | Yes | N/A |
| Keyboard/mouse (RAM) | Volatile, 256 bytes embedded in the super I/O controller (SIO2) | No | Unplug unit from main power |
| LOM EEPROM | Non-volatile, 2 MB embedded in LAN controller | No | N/A |
| Trusted Platform Module (TPM) | Non-volatile; 51 KB ROM for firmware and 38 KB system parametric data | No3 | Follow instructions below under "Clearing TPM" |